Chusetts



GEORGE BIRTWISTLE AND ROBERT BIRTWISTLE, OF FALL RIVER, MASSA- CHUSETTS. V p

Letters Patent No. 74,288, dated February 11, 1868.

IMPROVED GREASE 0R SIZING.

TO ALL WHOM IT MAY CONCERN:

Be it known that we, GEORGE BIRTWISTLE and ROBERT Bm'rwrsrnu of Fall River, in the county of Bristol, and State of Massachusetts, have invented a. new composition of matter, called Sizing-Grease or Composition; for the purpose of sizingeotton-warp and making it soft and pliable, thus enabling it to be worked more evenly; and we hereby declare that the following is an exact and fullstatement of the quantity and proportion of each article or ingredient composing said composition or grease, and that it is compounded as follows:

To eighteen quurtsof water add three (3) pounds and (10) ten ounces of white soap, and twh (2) quarts and one pint of soda-ash, (at 18 T.) Boil the whole thirty (30) minutes. Then, to every one hundred pounds of starch, add four pounds of sizing-grease or composition above described. 4

What \ve-claim as our inventiomhnddesire to secure by Letters Patent, is-

1. The combination of soap and soda-ash, in the proportions above described,'for the purposes named.

'2. The use of soap alone, as an agent, when applied to any starch or sizing, for the purposes above described.

' GEORGE BIRTWISTLE, ROBERT BIRTWISTLE.

Witnesses:

B. F. WINSLOW,

GEORGE A. Hrcus, R. M. WINS-LOW. 

